<?php  // $Id: tabs.php,v 1.43.2.8 2008/12/19 01:44:48 moodler Exp $
/// This file to be included so we can assume config.php has already been included.
/// We also assume that $user, $course, $currenttab have been set

	if (!isset($filtertype)) {
		$filtertype = '';
	}
	if (!isset($filterselect)) {
		$filterselect = '';
	}

	//make sure everything is cleaned properly
	$filtertype   = clean_param($filtertype, PARAM_ALPHA);
	$filterselect = clean_param($filterselect, PARAM_INT);

	if (empty($currenttab) or empty($user) or empty($course)) {
		//error('You cannot call this script in that way');
	}

	if (($filtertype == 'site' && $filterselect) || ($filtertype=='user' && $filterselect)) {
		$user = get_record('user','id',$filterselect);
	}

	$inactive = NULL;
	$activetwo = NULL;
	$toprow = array();

	/**************************************
	 * Site Level participation or Blogs  *
	 **************************************/
	if ($filtertype == 'site') {

		$site = get_site();
		print_heading(format_string($site->fullname));

		if ($CFG->bloglevel >= 4) {
			if (has_capability('moodle/site:viewparticipants', get_context_instance(CONTEXT_SYSTEM))) {
				$toprow[] = new tabobject('participants', $CFG->wwwroot.'/user/index.php?id='.SITEID,
					get_string('participants'));
			}

			$toprow[] = new tabobject('blogs', $CFG->wwwroot.'/blog/index.php?filtertype=site&amp;',
				get_string('blogs','blog'));
		}

	/**************************************
	 * Course Level participation or Blogs  *
	 **************************************/
	} else if ($filtertype == 'course' && $filterselect) {

		$course = get_record('course','id',$filterselect);
		$coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
		print_heading(format_string($course->fullname));

		$toprow[] = new tabobject('participants', $CFG->wwwroot.'/user/index.php?id='.$filterselect,
			get_string('participants'));

		if ($CFG->bloglevel >= 3) {
			$toprow[] = new tabobject('blogs', $CFG->wwwroot.'/blog/index.php?filtertype=course&amp;filterselect='.$filterselect, get_string('blogs','blog'));
		}

		if (!empty($CFG->enablenotes) and (has_capability('moodle/notes:manage', $coursecontext) || has_capability('moodle/notes:view', $coursecontext))) {
			$toprow[] = new tabobject('notes', $CFG->wwwroot.'/notes/index.php?filtertype=course&amp;filterselect=' . $filterselect, get_string('notes', 'notes'));
		}

	/**************************************
	 * Group Level participation or Blogs  *
	 **************************************/
	} else if ($filtertype == 'group' && $filterselect) {

		$group_name = groups_get_group_name($filterselect);
		print_heading($group_name);

		if ($CFG->bloglevel >= 2) {

			$toprow[] = new tabobject('participants', $CFG->wwwroot.'/user/index.php?id='.$course->id.'&amp;group='.$filterselect,
				get_string('participants'));


			$toprow[] = new tabobject('blogs', $CFG->wwwroot.'/blog/index.php?filtertype=group&amp;filterselect='.$filterselect, get_string('blogs','blog'));
		}

	/**************************************
	 * User Level participation or Blogs  *
	 **************************************/
	} else {
		if (isset($userid)) {
			$user = get_record('user','id', $userid);
		}
		print_heading(fullname($user, has_capability('moodle/site:viewfullnames', get_context_instance(CONTEXT_COURSE, $course->id))));

		$systemcontext   = get_context_instance(CONTEXT_SYSTEM);
		$coursecontext   = get_context_instance(CONTEXT_COURSE, $course->id);
		$personalcontext = get_context_instance(CONTEXT_USER, $user->id);

		if ($user->id == $USER->id || has_capability('moodle/user:viewdetails', $coursecontext) || has_capability('moodle/user:viewdetails', $personalcontext) ) { 
			$toprow[] = new tabobject('profile', $CFG->wwwroot.'/user/view.php?id='.$user->id.'&amp;course='.$course->id, get_string('profile'));
		}


	/// Can only edit profile if it belongs to user or current user is admin and not editing primary admin

		if(empty($CFG->loginhttps)) {
			$wwwroot = $CFG->wwwroot;
		} else {
			$wwwroot = str_replace('http:','https:',$CFG->wwwroot);
		}

		$edittype = 'none';
		if (isguestuser($user)) {
			// guest account can not be edited

		} else if (is_mnet_remote_user($user)) {
			// cannot edit remote users

		} else if (isguestuser() or !isloggedin()) {
			// guests and not logged in can not edit own profile

		} else if ($USER->id == $user->id) {
			if (has_capability('moodle/user:update', $systemcontext)) {
				$edittype = 'advanced';
			} else if (has_capability('moodle/user:editownprofile', $systemcontext)) {
				$edittype = 'normal';
			}

		} else {
			if (has_capability('moodle/user:update', $systemcontext) and !is_primary_admin($user->id)){
				$edittype = 'advanced';
			} else if (has_capability('moodle/user:editprofile', $personalcontext) and !is_primary_admin($user->id)){
				//teachers, parents, etc.
				$edittype = 'normal';
			}
		}

		if ($edittype == 'advanced') {
			$toprow[] = new tabobject('editprofile', $wwwroot.'/user/editadvanced.php?id='.$user->id.'&amp;course='.$course->id, get_string('editmyprofile'));
		} else if ($edittype == 'normal') {
			$toprow[] = new tabobject('editprofile', $wwwroot.'/user/edit.php?id='.$user->id.'&amp;course='.$course->id, get_string('editmyprofile'));
		}

	/// Everyone can see posts for this user

	/// add logic to see course read posts permission
		if (has_capability('moodle/user:readuserposts', $personalcontext) || has_capability('mod/forum:viewdiscussion', get_context_instance(CONTEXT_COURSE, $course->id))) {
			$toprow[] = new tabobject('forumposts', $CFG->wwwroot.'/mod/forum/user.php?id='.$user->id.'&amp;course='.$course->id,
						get_string('forumposts', 'forum'));

			if (in_array($currenttab, array('posts', 'discussions'))) {
				$inactive = array('forumposts');
				$activetwo = array('forumposts');

				$secondrow = array();
				$secondrow[] = new tabobject('posts', $CFG->wwwroot.'/mod/forum/user.php?course='.$course->id.
									  '&amp;id='.$user->id.'&amp;mode=posts', get_string('posts', 'forum'));
				$secondrow[] = new tabobject('discussions', $CFG->wwwroot.'/mod/forum/user.php?course='.$course->id.
									  '&amp;id='.$user->id.'&amp;mode=discussions', get_string('discussions', 'forum'));
			}

		}

	/// Personal blog entries tab
		require_once($CFG->dirroot.'/blog/lib.php');
		if ($CFG->bloglevel >= BLOG_USER_LEVEL and // blogs must be enabled
			(has_capability('moodle/user:readuserblogs', $personalcontext) // can review posts (parents etc)
			or has_capability('moodle/blog:manageentries', $systemcontext)	 // entry manager can see all posts
			or ($user->id == $USER->id and has_capability('moodle/blog:create', $systemcontext)) // viewing self
			or (has_capability('moodle/blog:view', $systemcontext) or has_capability('moodle/blog:view', $coursecontext))
			) // able to read blogs in site or course context
		) { //end if

			$toprow[] = new tabobject('blogs', $CFG->wwwroot.'/blog/index.php?userid='.$user->id.'&amp;courseid='.$course->id, get_string('blog', 'blog'));
		}

		if (!empty($CFG->enablenotes) and (has_capability('moodle/notes:manage', $coursecontext) || has_capability('moodle/notes:view', $coursecontext))) {
			$toprow[] = new tabobject('notes', $CFG->wwwroot.'/notes/index.php?course='.$course->id . '&amp;user=' . $user->id, get_string('notes', 'notes'));
		}

	/// Find out if user allowed to see all reports of this user (usually parent) or individual course reports

		$myreports  = ($course->showreports and $USER->id == $user->id);
		$anyreport  = has_capability('moodle/user:viewuseractivitiesreport', $personalcontext);

		$reportsecondrow = array();

		if ($myreports or $anyreport or has_capability('coursereport/outline:view', $coursecontext)) {
			$reportsecondrow[] = new tabobject('outline', $CFG->wwwroot.'/course/user.php?id='.$course->id.
										 '&amp;user='.$user->id.'&amp;mode=outline', get_string('outlinereport'));
		}

		if ($myreports or $anyreport or has_capability('coursereport/outline:view', $coursecontext)) {
			$reportsecondrow[] = new tabobject('complete', $CFG->wwwroot.'/course/user.php?id='.$course->id.
										 '&amp;user='.$user->id.'&amp;mode=complete', get_string('completereport'));
		}

		if ($myreports or $anyreport or has_capability('coursereport/log:viewtoday', $coursecontext)) {
			$reportsecondrow[] = new tabobject('todaylogs', $CFG->wwwroot.'/course/user.php?id='.$course->id.
										 '&amp;user='.$user->id.'&amp;mode=todaylogs', get_string('todaylogs'));
		}

		if ($myreports or $anyreport or has_capability('coursereport/log:view', $coursecontext)) {
			$reportsecondrow[] = new tabobject('alllogs', $CFG->wwwroot.'/course/user.php?id='.$course->id.
										 '&amp;user='.$user->id.'&amp;mode=alllogs', get_string('alllogs'));
		}

		if (!empty($CFG->enablestats)) {
			if ($myreports or $anyreport or has_capability('coursereport/stats:view', $coursecontext)) {
				$reportsecondrow[] = new tabobject('stats',$CFG->wwwroot.'/course/user.php?id='.$course->id.
											 '&amp;user='.$user->id.'&amp;mode=stats',get_string('stats'));
			}
		}

		if (has_capability('moodle/grade:viewall', $coursecontext)) {
			//ok - can view all course grades
			$gradeaccess = true;

		} else if ($course->showgrades and $user->id == $USER->id and has_capability('moodle/grade:view', $coursecontext)) {
			//ok - can view own grades
			$gradeaccess = true;

		} else if ($course->showgrades and has_capability('moodle/grade:viewall', $personalcontext)) {
			// ok - can view grades of this user - parent most probably
			$gradeaccess = true;

		} else if ($course->showgrades and $anyreport) {
			// ok - can view grades of this user - parent most probably
			$gradeaccess = true;

		} else {
			$gradeaccess = false;
		}

		if ($gradeaccess) {
			$reportsecondrow[] = new tabobject('grade', $CFG->wwwroot.'/course/user.php?id='.$course->id.
										 '&amp;user='.$user->id.'&amp;mode=grade', get_string('grade'));
		}

		if ($reportsecondrow) {
			$toprow[] = new tabobject('reports', $CFG->wwwroot.'/course/user.php?id='.$course->id.
									  '&amp;user='.$user->id.'&amp;mode=outline', get_string('activityreports'));
			if (in_array($currenttab, array('outline', 'complete', 'todaylogs', 'alllogs', 'stats', 'grade'))) {
				$inactive  = array('reports');
				$activetwo = array('reports');
				$secondrow = $reportsecondrow;
			}
		}
	}	//close last bracket (individual tags)


	/// this needs permission checkings


	if (!empty($showroles) and !empty($user)) { // this variable controls whether this roles is showed, or not, so only user/view page should set this flag
		$usercontext = get_context_instance(CONTEXT_USER, $user->id);
		if (has_capability('moodle/role:assign',$usercontext)) {
			$toprow[] = new tabobject('roles', $CFG->wwwroot.'/'.$CFG->admin.'/roles/assign.php?contextid='.$usercontext->id.'&amp;userid='.$user->id.'&amp;courseid='.$course->id
								  ,get_string('roles'));

			if (in_array($currenttab, array('assign', 'override'))) {
				$inactive = array('roles');
				$activetwo = array('roles');

				$secondrow = array();
				$secondrow[] = new tabobject('assign', $CFG->wwwroot.'/'.$CFG->admin.'/roles/assign.php?contextid='.$usercontext->id.'&amp;userid='.$user->id.'&amp;courseid='.$course->id
								  ,get_string('localroles', 'role'));
				$secondrow[] = new tabobject('override', $CFG->wwwroot.'/'.$CFG->admin.'/roles/override.php?contextid='.$usercontext->id.'&amp;userid='.$user->id.'&amp;courseid='.$course->id
								  ,get_string('overridepermissions', 'role'));

			}
		}
	}
/// Add second row to display if there is one

	if (!empty($secondrow)) {
		$tabs = array($toprow, $secondrow);
	} else {
		$tabs = array($toprow);
	}

	if ($currenttab == 'editprofile' && ($user->id == $USER->id) && user_not_fully_set_up($USER)) {  
		/// We're being forced here to fix profile
	  notify(get_string('moreprofileinfoneeded'));
	} else {
	  /// Print out the tabs and continue!
	  print_tabs($tabs, $currenttab, $inactive, $activetwo);
	}

?>
